Geared, adjustable, pipe-threading device



c; a. WAHNSIEDLER, GEARED, ADJUSTABLE, PIPE THREADING DEVICE.

APPLICATION FI LED JUNE 23, I919.

Patented July 6, 1920 IIIImIIIILIN W able pipe threading criantns e. wannsrnntnn, or :evaitrsvrtnn, INDIANA.

Gill-A331], ADJUSTABLE, PIPE-THIEtEADING- DEVIGE.

Application filed June 23, 1919. fcrial No. 366,054i.

To all v i/tom it mag concern:

l'ieit known that if, thiamine it lVAi-inantenna, acitiz en ot the nited titatjes, resid- \ing at lilyansyille anti burgh and Eitate of lind ana, have mvented 1e county of Vandercertain new and useful lm n'ovements in Pipe-Threading Devhiesf of which cation; i This invention relates to geared; adjustivices. in pipe tln'eadingdevices where the dies or chasers a move i'itislots in a head; considerable trouble is caused by; waste, cuttingsoi metal, oil, and

i other material collecting in the channels or slots in which the dies or chasers move. "l: his interferes with the proper action oi the di sorchasers and causes inconvenience and losso t time intalring out the dies and clean ing the channels. e 1

My invention hasior its objectthe provi: sion of means whereby the channelsorislots in which the dies or; ehasers are held may be e treely and quickly cleaned of w' ste, cuttings oi metal, oil and any toreign material which may get into saidchannels. The invention comprises a cross slot intersecting the channel orslot in which the die or chaser is lo- *cated. This slot is pre i'e ably located across to the .blind end of the channel or slot in "When to. lVilliam Vosper No. 763,816, dated June 9,6, 19%, wherein tapered pins are employed for automatically allowing the dies or chasers to recede as the threadingoperation advances, the slotis located in line with the t io opening through which the controlling pin passes, that is, at the inner blindend of the channel. As the cleaning slot, constituting my invention, is provided in connection with each die slot or channel and extends completely across the raised parts on the head wherein the die slots are provided a piece of waste or rag can be drawn completely through the cleaning slot l have provided,

. or through one branch of it and through the i die slot, thus enabhng the the slot tobe quickly and easily cleaned otcuttings, oil, pieces of waste or other material which 111- terferes with the proper. operatioiroftlie dies.

My improvements are shown and described in connection with a pipe threading device such shown in the Vosper Patent bpecification of Letters Iiatent.

following is a specili plied, and

tically intersect the die channels 8.

Patented July 6, i626.

use in connection with that particular type of threading device nor to any type as my clean out slot or opening may be provided 1n C'OilllOCtlOliWl'tl'l the channel or slot which holds the die or chaser oi any tool or ap pliance using a cutter or a die which is movable in a channel.

In the accompanying drawings .iiigure l is a side elevation, partly in section, showing a geared adjustable pipe threading device with my improvements ap- Fig. 2 a plan view,'one oi the die holders being in section.

k'l he work holder 1 is provided with clamping screws 2 by which it may be secured on the pipe which is to be threaded. The die carrying head 3 has screw threads 4:

engaging corresponding threads 5 on the Rotation oi' the head 3 causes it to advance into the worlr holder 1 byreason of the arrangement oi: the screw threads 4: and

The head 6 is provided on its upper -face with raise 1 parts 7 having die holding slots or channels 8. 'lo better illustrate my im- PTOVBInQHtE, the dies or chasers, which operate in the channels 8, have been omitted.

A collar 9 which is rotatable on the flange or shoulder 100i the work holder 1 is held against displacement by a nut 11. Secured to alldrislllg from the collar 9 are the feedingor adjusting pins 19. which project upwardly through the openings 13 which ver- The inner tacos it or the pins 12 are tapered and the outer ends of the dies or chasers bear against said tapered faces. Consequently, as the screw threading operation proceeds and the head 8 works into the holder 1, the dies or chasers move outwardly or away from each other and thus cut a tapered thread on the pipe being threaded.

As thus far described, the device is the same in principle as that set' forth in the patent to Vesper 763,816, June 28, 1904:.

lrleretofore much inconvenience has been experienced and time lost due to the metal cuttings, oil, pieces of waste, and other foreign material working into the channels 8 and interfering with the operation of the dies or Chasers, and it has been difficult to clean the channels 8.

My improvement consists in the provision of a clean out opening or slot intersecting the slot 8 and located, by preference, immediately in front of the pin 12, in each instance. By thus locating the clean out 'openingl5, it is not only positioned at the blind end of the channel 8 but also intersects. the opening 13. VVh1le I preferably provide a clean out slot 15 which extends completely across the raised guide part 7,- it is within the spirit of'my invention to 1 provide a slot 15 which enters only one side ofthe guide 7 and communicates with the slot or channel 8. I I v A small piece of rag or waste may be in troduced through the clean out slot or open 8 may be readily had when the" clean out slot 15 is used, whether said slot extends all the way across-the guide 7 or only in through one side thereof.

] 'VVhat I claim is: r I

1. In a tool having a head provided with channels which are blind at their outer ends,

tive channels. 4

'2. 'In a tool having a head prov ded with clean-out openings intersecting the respecchannels which are blind at their outer ends,

clean-out openings intersecting-the respective channels, chasers or cutters slidable in the channels, and feeding devices for said cutters which engage the outer extremities of the cutters.

3. In a tool having a head provided with channels, clean-out openings intersecting the respective channels, chasers or cutters slidable in the channels, and feeding devices for said cutters which engage the outer extremities of the cutters.

t. In a tool having a head provided with channels which are blind at their outer ends, clean-out openings intersecting the respective channels in the region of the outer ends of said channels.

5. In a tool having ahead provided with channels, chasers or cutters slidable in the channels, and feeding devices for said cutters which engage the outer extremities of the cutters, said head having cleanout openings intersecting the channels in the region where the cutters are engaged by the feeding devices.

6. In a threading device provided with a head having a channel to hold a movable die or chaser and a pin arranged to cross the channel and adapted to cooperate with the die or chaser, a clean out opening intersecting the channel in the region of the point of contact of the pin and die or chaser and also intersecting the opening in which the pin works.

In testimony whereof I aflix my signature.

CHARLES Gr. WAHNSIEDLER. 

